Beaver Dam Wc System 1, AZ
Lead detected, under the action levels
Latest 90th-percentile lead: 1.4 ppb (monitoring period 2023-2025). The federal action level is 15 ppb today and drops to 10 ppb in Nov 2027; EPA's health goal is 0. Lead was measured in sampled homes but the 90th percentile is under both action levels. EPA's health goal for lead is zero, so test your own tap if your home was built before 1986 or anyone in it is pregnant or a young child.
Beaver Dam Wc System 1 at a glance
Beaver Dam Wc System 1 serves about 1,048 people through 507 service connections, which makes it a small system under EPA's size classes. It is under mixed public and private ownership and draws groundwater, in Mohave County, Arizona. EPA system ID: AZ0408006; phone on file: 928-347-5000. Ask them for your address in their service line inventory - every system had to publish one by Oct 2024.
Lead results over time
That is down 1.4 ppb from 2.8 ppb in the period ending 2022. The highest 90th-percentile result EPA holds for Beaver Dam Wc System 1 is 5.4 ppb across 5 monitoring periods, none of them over 15 ppb.
| Period ending | 90th-percentile lead |
|---|---|
| 2025 | 1.4 ppb |
| 2022 | 2.8 ppb |
| 2019 | 1.5 ppb |
| 2018 | 5.4 ppb |
| 2017 | 2 ppb |
Against other Arizona systems
Of the 730 Arizona systems with a lead result, the median latest reading is 0 ppb; 9 are over 15 ppb right now and 58 have gone over at some point. Beaver Dam Wc System 1's 1.4 ppb sits at the 78th percentile in Arizona and the 62nd nationally (higher means more lead).
Nearby utilities
49 other systems share Mohave County; 18 of them have a higher latest lead result than Beaver Dam Wc System 1. If you are unsure which one supplies your house, the name on your water bill decides it.
| System | People | Latest lead |
|---|---|---|
| Lake Havasu City Of | 54,610 | 3.1 ppb |
| Kingman Municipal Water | 45,000 | 0 (not detected) |
| Bullhead City Mohave | 36,330 | 0 (not detected) |
| Bermuda Water Company Inc | 25,000 | 5.6 ppb |
| Valley Pioneers Water Company Inc | 6,263 | 1.5 ppb |
| North Mohave Valley | 5,190 | 22 ppb |
| Epcor - Lake Havasu | 4,712 | 0 (not detected) |
| Golden Shores Water Company | 3,970 | 1.7 ppb |
| Golden Valley Improvement District | 3,950 | 0 (not detected) |
| Epcor - Willow Valley/King Street | 3,566 | 0 (not detected) |
What to do in your house
Test your own tap with a certified lab first-draw sample; Littlefield, AZ may offer free or low-cost kits through the utility. If your own line is lead, replacing the private side runs about $1,200-$12,300 (EPA average about $4,700). Ask Beaver Dam Wc System 1 whether it covers that cost before hiring anyone - many utilities now do.
These figures describe homes the utility sampled, not your tap. Only your service line record or a test of your own water answers the question for your house. What a 90th-percentile result does and does not tell you: how to read a lead result. Systems that went over once often dip back under; here is what that means.